Megabit to Gigabit Converter

Data Converter

21 units available

Decimals:

From

To

0.000977

1 Mb = 0.000977 Gb

Formula:

Gb = Mb × 0.0009765625

With your value: 1 Mb = 0.00097656 Gb

How big is that?

Everyday references on a logarithmic scale, all expressed in megabit so you can sanity-check the result.

Plain-text email (1/66 your value)0.00191 Mb

Your value0.125 Mb

Phone photo (31× your value)3.81 Mb

MP3 song (38× your value)4.77 Mb

CD-ROM (5.3e+3× your value)668 Mb

HD movie (3.1e+4× your value)3.81e+3 Mb

Other Megabit to Gigabit conversions

2 Mb to Gb 3 Mb to Gb 4 Mb to Gb 5 Mb to Gb 6 Mb to Gb 7 Mb to Gb 8 Mb to Gb

Megabit to Gigabit Conversion Table

Megabit (Mb)	Gigabit (Gb)
0.5	0.000488
1	0.000977
2	0.001953
5	0.004883
10	0.009766
15	0.014648
20	0.019531
25	0.024414
50	0.048828
100	0.097656
250	0.244141
500	0.488281
1000	0.976563

Gigabit to Megabit Conversion Table

Gigabit (Gb)	Megabit (Mb)
0.5	512
1	1,024
2	2,048
5	5,120
10	10,240
15	15,360
20	20,480
25	25,600
50	51,200
100	102,400
250	256,000
500	512,000
1000	1,024,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Megabit (Mb)

Data

Conventional value

Decimal prefixes (kB, MB) are powers of 1000; binary prefixes (KiB, MiB) are powers of 1024 as standardised by IEC 80000-13.

Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology

International Electrotechnical Commission · Reviewed 2026-07-01

Gigabit (Gb)

Data

Conventional value

Decimal prefixes (kB, MB) are powers of 1000; binary prefixes (KiB, MiB) are powers of 1024 as standardised by IEC 80000-13.

Source: IEC 80000-13:2008, Quantities and units — Part 13: Information science and technology

International Electrotechnical Commission · Reviewed 2026-07-01

How to Convert Megabit to Gigabit

To convert from Megabit (Mb) to Gigabit (Gb), multiply the value by 0.0009765625.

Formula: Gb = Mb × 0.0009765625

Reverse: Mb = Gb × 1,024

Step-by-Step Example

Start with your value in Megabit. For example: 5 Mb
Multiply by the conversion factor: 5 x 0.0009765625
The result is: 0.004883 Gb

About Megabit

The megabit (Mb) is a unit of digital storage. One megabit equals 131072 bytes. UnitConvertLab converts it against every other data unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: data calculations, engineering and science, education.

About Gigabit

The gigabit (Gb) is a unit of digital storage. One gigabit equals 1.342177 × 10^+8 bytes. UnitConvertLab converts it against every other data unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: data calculations, engineering and science, education.

Frequently Asked Questions

How many Gigabit are in 1 Megabit?

There are exactly 0.0009765625 Gigabit in 1 Megabit. This means the conversion factor from Megabit to Gigabit is 0.0009765625.

What is the formula to convert Megabit to Gigabit?

The formula to convert Megabit to Gigabit is: Gb = Mb × 0.0009765625. For example, to convert 10 Megabit to Gigabit, you would multiply 10 by 0.0009765625.

What is a Megabit?